摘要
研究了钢纤维高强混凝土单轴受压应力-应变全曲线的特征。通过试验发现,在高强混凝土中掺入钢纤维,对应力-应变曲线产生了明显的影响,特别在钢纤维体积率Vf=1.5%及2.0%时,应力-应变全曲线出现了二次峰值,这在普通钢纤维混凝土及高强混凝土中从未出现过。同时由于钢纤维的掺入,对高强混凝土单轴受压的应力峰值、峰值应变及韧性都产生了不同程度的影响,从而有效地改善了高强混凝土的性能。
It is studied the complete stress-strain curve＇s characteristics of steel fiber high-strength concrete. Resulting from the experiments, the complete stress-strain curve of high-strength concrete with the steel fiber comes to an appearent changes, especially at the steel fiber volume ratio （Vf） of 1.5% and 2.0%, the second peak value appears on the complete stress-strain curve, which cannot be drawn for the ordinary steel fiber concrete and high-strength concrete. At the same time, the values of the stress peak and peak strain and flexibility of high-strength concrete are influenced to the different extent by the variety of steel fiber volume ratio, so the steel fiber can improve efficiently the functions of highstrength concrete.
出处
《工业建筑》
CSCD
北大核心
2005年第11期78-80,共3页
Industrial Construction
关键词
钢纤维
高强混凝土
单轴受压
steel fiber
high-strength concrete
uniaxial compression
